Solutions by everydaycalculation.com
1st number: 10/18, 2nd number: 2 1/10
1018 - 2110 is -13990.
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Related: 20/18-21/10 10/18-42/10 10/36-21/10 10/18-21/20 30/18-21/10 10/18-63/10 10/54-21/10 10/18-21/30 50/18-21/10 10/90-21/10 10/18-21/50 70/18-21/10 10/18-21/70
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